一. 教学内容：
Unit 3 Inventors and inventions
二. 教学目标：掌握本单元的重点单词与短语
掌握本单元的语法:过去分词的用法
Ⅰ.Language points:
1. When I called up my mother in the countryside on the telephone, she was very upset.
call up 打电话，使……回忆起
今晚我会给你打电话。
Tonight I will call you up.
老相片引起了我对童年的回忆。
The old photo call me up of my childhood.
call back召唤某人回来；再访；回电话
call for需要，要求，接（人或物）
call in邀请；请来
call on拜访（人）
call at拜访（某地）
Ex. ——Can I do the job?
——I’m afraid not, because it ______skill and patience.
A. calls on B. calls out
C. calls up D. calls for
2. now and then 时而；不时= sometimes, but not often
我有时喜欢去看歌剧。
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(I like to go to watch the opera now and then.)
相关短语：
from time to time有时；不时
(every) now and again时而；不时
from now on从现在开始，今后
just now刚才
since then从那时以来
3. Here was a chance for me to distinguish myself by inventing something that would catch snakes but not harm them.
distinguish vt. & vi.
(1)辨别；辨认
从远处我能认出他们。
______________________________________________________________
(I)can distinguish them at a distance.)
(2) （常与from, between连用）区别；区分
应当教育孩子分辨好坏。
Children should be taught to ________________________________________
(3) (常与from连用) 有别于；有……特点
语言把人和动物区别开来。
Speech______________________________________________________
( Speech distinguish humans from other animals.)
(4)distinguish oneself 显扬自己；使自己扬名
这个人因智慧而扬名。
The man_________________________________________________________.
(The man distinguished himself by his wisdom.)
distinguished adj. 著名的，出名的
distinguishing adj. 有区别的
distinguishable adj. 可区别的
4. I set about researching the habits of snakes so I could trap them in the easiest way.
set about =set out: to begin or start 着手；开始
Ex1.他一到那儿就着手解决问题。
He _________________________________________________ as soon as he arrived there.
= He _______________________________________________ as soon as he arrived there.
set out出发，起程
set out to do sth. 开始做某事
set off出发，动身
set aside留出，对……不予考虑
set down记下，写下
set up设置，造成，产生
5. They abruptly disappeared into a convenient hole in the wall.
abruptly adv.突然地，唐突地 abrupt adj.突然的；意外的
Ex. 这路有很多急转弯。
Ex1. The road is full of ________________________________________________.
这会议突然结束了。
Ex2. The meeting came to _____________________________________________.
6. Ex1)._________ with the size of the whole earth, the biggest ocean does not seem big at all.
A. Compare B. When comparing
C. Comparing D. When compared
Ex2). _____more time, we are sure to finish it.
A. Given B. Giving C. Be given D. If giving
注意：在条件/时间/让步状语从句中，当主语从句与从句的主语一致时，从句中的主语与be可以省略。
7. convenient adj. 便利的，方便的
be convenient to sb. 对某人方便
it is convenient for sb. 对某人方便
it is convenient to do sth. 做某事方便
Ex1.三点钟对你方便吗？
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